Gauging machine



April 28, M36.

P. H. HUTCHENSON GAUGING MACHINE Filed April 15, 1930 2 Shefits-$h8t 2H/SA TTUH'A/EY.

Patented Apr. 28, 1936 UNITED STATES PATENT OFFICE GAUGING MACHINEApplication April 15, 1930, Serial No. 444,543

20 Claims. (01. 33-472) This invention relates to gauging machines andcomprises all the features of novelty herein disclosed. An object of theinvention is to provide an improved machine for testing the condition ofa surface, especially a surface that is intended to be perpendicular tothe axis of an article. Another object is to provide an improved machinefor gauging the length of a round article or testing the out-of-squarecondition of an end face or shoulder thereof. Another object is toprovide an improved machine for rotatably supporting a round article ina definite relation to a tool operating on an end face thereof wherebyaxial shifting of the article is prevented during the operation in spiteof tool pressure or an out-of-square condition in an opposed end face.

To these ends and to improve generally and in detail upon machines ofthis character, the invention consists in the various mattershereinafter described and claimed. In its broader aspects, the inventionis not necessarily limited to the specific construction selected forillustrative purposes in the accompanying drawings in which Fig. 1 is aside elevation of the machine.

Fig. 2 is a plan view with some parts broken away.

Fig. 3 is a detail sectional view of the wabble plate in its operativerelation to an article.

Fig. 4 is a partial plan view, enlarged, with one of the rollers insection.

Fig. 5 is a sectional view of the pressure roller and its mounting.

Fig. 6 is a diagrammatic end view and Fig. 7 is a front viewillustrating the immediate article engaging parts.

The present machine is especially adapted to indicate any variation inthe length of a sleeve S at different portions of its periphery. The

sleeve is supported and rotated by a series of rollers which maintainthe axis of the sleeve in a definite line of direction. A wabble-plateacts as an abutment for one end face of the sleeve to prevent any axialshifting while the spring pressed stem of an indicator rides on theother end.

The numeral 8 indicates a frame or base which can be convenientlyfastened to a bench. The frame has a pair of inclined dovetail ways [8separated by a space or recess l2. A slide [4 is shiftable along theways and has the usual gib I 6 secured to the slide by screws I8. A nut20 is fastened to the under side of the slide by screws 22 and isthreaded on an adjusting screw 24 having an operating knob 26. The screwis journalled for rotation without endwise movement in a plate 28fastened by counter-sunk screws 30 to the frame. The slide I4 has a pairof end standards 32 which revolubly support a roller 34 which in thepresent instance is a plain cylinder. The details of the roller mountingwill be clear from a description of a similar roller hereinafter re-'ferred to.

A bracket 36 is fastened to one end of the frame by screw bolts 38. Aboss 40 on the bracket is bored to removably support one end of a shaft42. Another bracket 44 is fastened to the rear of the frame by screwbolts 46 and has a boss 48 which is bored to removably receive the otherand smaller end of the shaft 42. As indicated in 15 Fig. 4, the shaftsupports a pair of ball race rings 50 and 52 separated by a sleeve 54,the race ring 50 engaging a shoulder afforded by the larger end of theshaft. Another sleeve 56 on the shaft engages the inner wall of the boss48 and a nut 20 58 threaded on the-smaller end of the shaft clamps theshaft and its sleeves in a fixed position. Upon removal of the nut 58,the shaft can be slid out endwise through the hole in the boss 40, thesleeves and race rings being stripped oil 25 by contact with the boss. Aroller 60 is rotatably mounted on the bearings and has a groove 62 for adriving belt 64. An outer race ring 66 is held in one end of the rollerby a nut 68. Another outer race ring 10 is slidably supported in the 30other end of the roller and is pressed outwardly by coil springs 12engaging an interposed washer 14. A nut 16 closes this end of the rollerwhich is preferably a plain cylinder. The spring-tensioned bearingsprovide an initial load which in- 35 sures a true running of the rolleron a line axis. The other roller 34 preferably has a similar hearingmounting to promote true running on a parallel line axis. The sleeve Sto be gauged is supported. by line contact with the two rollers and 40the adjustment of the slide l4 along its inclined ways provides means tosupport sleeves of any selected diameter at the same level. Aninclination of 22 /2 degrees in the ways [0 will satisfy thisrequirement. The sleeve S is pressed against 45 the two supportingrollers by a third or pressure roller so that, when one or more of therollers is driven, the sleeve and all the other rollers roll at the samesurface speed.

The pressure roller 80 rotates around a sup- 50 porting shaft 82removably mounted in a yoke 84 which can swivel on the head 86 of a stud88 secured by a lock screw 90 to a block 92 which is clamped on a rod orarm 94. The block is split and can be clamped in adjusted position onthe 55 arm 94 by a screw 96. This adjustment affords means to maintainthe roller 80 in substantially the same angular relation to sleeves ofdifierent diameter, this roller being moved outwardly on the arm whenthe supporting roller 34 is lowered. The arm 94 is split and clamped bya screw 98 to a shaft I which is rockably mounted at one end in a lug$02 of the bracket 36 and at the other end in a lug I04 of the bracket44. The shaft I00 has a long keyway I06 and the arm 94 has a key I08 toengage it. Adjustment of the arm along the shaft is to position thepressure roller 80 for long or short sleeves, the pressure rollerpreferably engaging the selected sleeve substantially centrally. Acollar IIU-is clamped to the shaft I00 at one side of the lug I02, andan arm I I2 is keyed to the shaft and clamped thereon by a nut at theother side of the lug. The arm H2 is pivotally connected by a stud II4to the eye I I6 of a vertical operating rod II8 which is guided looselyin an opening of a guide arm I on the bracket 36. The lower end of theoperating rod is threaded in a coupling I22 which may be connected inany suitable way to a treadle (not shown). A coil spring I24 interposedbetween the guide arm I20 and adjusting nuts I26 affords the pressuretending to hold the pressure roller 80 against the sleeve to be tested.When no work is between the rollers, the movement of the operating rod II8 and of the roller 80 is limited by stop nuts I28 engaging the guidearm I20.

The pressure roller 80 desirably has spaced ribs I32 to support the workat two locations and the swivel mounting 88 for the roller, being at anangle to the axis of the roller, insures contact of both ribs with thesleeve S. The roller has an end flange I34 engaging one end of an outerrace ring of a ball bearing I36 while a nut I38 clamps the race ring inthe roller. The supporting shaft 82 has a reduced portion I40 over whichthe inner race ring of the bearing is sleeved and a still smallerportion I42 receives a spacing sleeve I44. The larger end of the shaft82 is removably received in one arm of the yoke 84 while the smallestportion I42 is passed through the other arm and threaded to receive aclamping nut I46 which holds the shaft, inner race ring and sleeve I44as a unit rigidly to the yoke, sufficient clearance being left betweenthe inner race ring and the roller parts to let the roller rotate freelyon the bearing balls. Upon removal of the nut I46, the shaft is readilyremoved from the yoke by axial movement towards the larger end.

While the sleeve S or other work-piece is rotating on the rollers andheld from endwise movement by the wabble plate hereinafter described, atool is presented to an end face thereof. In the illustratedconstruction, a contact button I50 on the end of a spring pressedindicator stem rides on the end face of the sleeve and tests the lengthor out-of-square condition of the sleeve at all points in the periphery.The stem is arranged to slide in a line parallel to the axis of thework-piece. The indicator I52 has the usual pointer I54 and is clampedin any suitable way on a supporting stud I56. The stud has a threadedportion I58 slidable in a holder I60 which has a portion threaded in asupporting standard I62 on the frame. The holder has a slot I64 for aknurled nut I66 engaging the threaded portion of the stud to adjust thestud endwise, and a knurled nut I68 locks the stud in adjusted position.The adjustment is to set the indicator initially with respect to thesleeve and to bring the pointer to the zero of the dial.

The rollers above described hold the axis of the sleeve S always in adefinite line of direction which is in the same plane with the line ofcontact of the sleeve with any one of the rollers and also parallel tothat line when the rollers and the sleeve are cylindrical. The sleeve isrestrained from axial movement by an abutment member herein shown as awabble plate I10 which bears flatwise against that end face of thesleeve which is opposite to the spring-pressed gauge button I50. Whetherthe end face is square across the axis or ground on a bias, the wabbleplate always conforms to it and rotates co-axially with it. The wabbleplate I10 abuts against a flange I12 on a threaded holder I14 where itis held by a clamping nut I16. Both the flange and the holder areslotted for a spanner wrench. Thus, the wabble plate is easily removableand replaceable by another as when treating sleeves of another diameter.The holder has an internal spherical surface I18 which is hardened andhas a universal movement on a hardened ball I80.

The holder rotates with the wabble plate and sleeve S but wear isdistributed on spherical surfaces and is not of consequence inasmuch asthe speed of rotation is comparatively slow. The holder has a hole I82which has a clearance with a shouldered screw stud I84 which keeps the tholder on the ball. Preferably the center of oscillation for thewabbling motion is in the axis of the work and in the plane of thework-engaging face of the wabble plate. This work-engaging face ispreferably flat and continuous in order I 7 to bear at a plurality ofpoints spaced about the axis of the work-piece. The ball is connected bya necked-down portion I86 to a supporting rod I88 clamped to a slideI90. The slide has a tongue I92 guided in a slot I94 in a shelf I96 ofthe bracket 36. The slide is split at one side and the two parts arepulled together by a vertical clamping bolt I98 to grip the rod I88. Thebolt has a head 200 below the shelf I96, a flat-sided portion 202entering the slot I94 to prevent rotation, and a wing nut 204 isthreaded on its upper end. The slide is adjusted to such a position thatthe rod I88 and wabble plate I10 are concentric with the sleeve whateverits diameter,

and all sizes of sleeves are supported with their centers in a planeparallel to the shelf. For long sleeves, the supporting rod I88 can beshifted endwise to adjusted position in the slide I90.

If the end face of the sleeve S engaged by the wabble plate I 10 issquare with the axis, the plate will rotate with the sleeve withoutwabbling and will hold the sleeve from shifting endwise. If the end facehas an inclination, the plate will wabble during rotation but willalways conform to the face (tool pressure such as the spring pressure inthe usual gauge stem always pressing the sleeve against the plate) andso will prevent any. axial shifting of the sleeve. Hence the gauge willindicate any out-of-square condition in the opposite face and show thevariation in length at different portions of the periphery. If there isno variation in length, the gauge can be made to indicate the lengtheither directly or by comparison with a known length. When the sleevehas internal shoulders or external flanges, the condition of such facescan be tested in a similar way. In the present machine, the holder I14and screw I84 enter the bore of the sleeve S but the wabble platemount-- ing is easily adapted to act as an abutment for a solid piece tobe gauged.

I claim:

1. In a gauging machine, means for rotating a work-piece and maintainingits axis of rotation in a definite line, the work-piece having a face atan angle to its axis, a gauge member riding on the face of thework-piece, an abutment member engaging the work piece to prevent axialshifting thereof, and a wabbling support for the abutment member;substantially as described.

2. In a gauging machine, means for rotating a work-piece and maintainingits axis of rotation in a definite line, the work-piece having a face atan angle to its axis, a gauge member riding on the face of thework-piece, an abutment member engaging the work-piece to prevent axial'shifting thereof, and means independent of the work rotating means forsupporting the abutment member for co-axial rotation with thework-piece; substantially as described.

3. In a gauging machine, means for rotating 2. work-piece andmaintaining its axis of rotation in a definite line, the work-piecehaving a face at an agle to its axis, a gauge member riding on the faceof the work-piece, an abutment member engaging the work-piece to preventaxial shifting thereof, and means for supporting the abutment member forrotation with the work-piece and for wabbling movement to compensate forout-of-square condition in the surface of the work-piece engaged by saidabutment member; substantially as described.

4. In a gauging machine, means for rotating a work-piece and maintainingits axis of rotation in a definite line, the work-piece having a face atan angle to its axis, a gauge member riding on the face of thework-piece, an abutment member engaging the workpiece to prevent axialshifting thereof, a rocking support for the abutment member, and meansfor locating the center of rocking in the axis of rotation of thework-piece; substantially as described.

5. In a gauging machine, means for rotating a work-piece which has endfaces and maintaining its axis of rotation in a definite line, a gaugemember riding on one end face of the work-piece, an abutment memberengaging the other end face of the work-piece to prevent axial shiftingthereof, and means providing for a wabble motion of the abutment memberaround a center in the plane of said other end face of the work-piece;substantially as described.

6. In a machine of the character described, rollers having rolling linecontact with a workpiece for rotating the work-piece and maintaining itsaxis of rotation in a definite line, the work-piece having a face at anangle to its axis, a gauge member engaging the face of the Workpiece,and means engaging portions of the workpiece spaced about its axis forpreventing axial shifting of the work-piece on the rollers;substantially as described.

7. In a machine of the character described, roilers having rolling linecontact with a workpiece for rotating the work-piece and maintaining itsaxis of rotation in a definite line, a gauge member engaging thework-piece, an abutment member engagina face of the work-piece forpreventing axial shifting of the work-piece, and means providing awabbling support for the abutment member to compensate for out-ofsquarecondition in the face of the work-piece engaged by said member;substantially as described.

8. In a machine of the character described, rollers having rolling linecontact with a workpiece for rotating the Work-piece and maintaining itsaxis of rotation in a definite line, a gauge member engaging thework-piece, an abutment member engaging the work-piece for preventingthe axial shifting thereof, and means for supporting the abutment memberfor coaxial rotation with the work-piece; substantially as described.

9. In a machine of the character described, rollers having rolling linecontact with a workpiece for rotating the work-piece and maintaining itsaxis of rotation in a definite line, a gauge member engaging thework-piece, an abutment member engaging the work-piece for preventingaxial shifting thereof, and a support for the abutment member providingfor rotation and a wabbling motion thereof; substantially as described.

10. In a machine of the character described, a control roller havingrolling line contact with a work-piece to control rotation thereof,means for maintaining the axis of the work-piece in a plane with saidline of contact, a gauge member for engaging the work-piece, and awabble plate engaging the work-piece to prevent axial shifting thereof;substantially as described.

11. In a machine of the character described, means for rotating a roundwork-piece and maintaining its axis of rotation in a definite line, thework-piece having a face at an angle to its axis, a tool engaging theface of the work-piece, and a wabble plate engaging the work-piece toprevent axial shifting thereof; substantially as described.

12. In a machine of the character described, means for rotating a roundwork-piece and maintaining its axis of rotation in a definite line, thework-piece having a face at an angle to its axis, a tool engaging theface of the work piece, a support coaxial with the axis of theworkpiece, and a wabble plate detachably carried by the support andengaging the work-piece; substantially as described.

13. In a machine of the character described, means for rotating a roundwork-piece and maintaining its axis of rotation in a definite line, atool engaging the work-piece, a wabble plate engaging the work-piece toprevent axial shifting thereof, and means for adjusting the wabble platewith respect to the tool to suit the length of the work-piece;substantially as described.

14. In a machine of the character described, means for rotating a roundwork-piece and maintaining its axis in a definite line, the work-piecehaving a face at an angle to its axis, a tool engaging the face of thework-piece, a support coaxial with the axis of the work-piece, and awabble plate detachably carried by the support, the wabble plateengaging the work-piece and rotating therewith and being positioned tooppose the pressure of the tool; substantially as described.

15. In a machine of the character described, means for rotating awork-piece having opposed faces and maintaining its axis of rotation ina definite line, a tool member and an abutment member at opposite facesof the work-piece, and a wabble support for one of said members;substantially as described.

16. In a machine of the character described,

control roller means for rotating a work-piece having opposed faces andmaintaining-its axis of rotation in a definite line, a tool member andan abutment member at opposite faces of the work-piece, a

- slidable support for one of said members to the control roller, agauge member engaging the work-piece, and an abutment opposing the gaugemember; substantially as described.

18. In a machine of the character described, means for supporting androtating a round workpiece, a gauge member and an abutment member spacedapart to receive the work-piece between them, the abutment memberthereby opposing the gauge member, and a tiltable mounting-for theabutment; member; substantially as described.

19. In a machine of the character described, m ans for supporting androtating a round workpiece, a guage member riding on the work-pieceduring such rotation, a. pressure roller engaging the work-piece andholding it against the supporting means, and a swivelling support forthe pressure roller, the axis of swivelling being at an angle to theaxis of rotation of the pressure roller; substantially as described.

20. In a gauging machine, means for rotating a work-piece having opposedend faces and maintaining the axis of the work-piece in a definite lineof direction, a gauge member engaging one end face of the Work-piece asthe latter rotates an abutment member mounted independently of saidrotating means and engaging the other or opposed end face of the workpiece at a plurality of points to prevent shifting of the work-piece inthe direction of its axis, and a support providing for said independentmounting of the abutment member; substantially as described. PHILIP H.HUTCI-IINSON.

CERTIFICATE OF CORRECTION.

Patent NO 2,059,224. April 28, 1936.

HILIP H. I-IUTCHINSON.

fied that errer appear in printed specification of Page 5, secend t ishereby certi s ction as follows:

I the above numbered patent requiring eorre column, line 10, claim 8,strike out the article the" page 1-, second col-- umn, line 16, claim20, insert a comma after "retatesE and that the said Letters Patentshould be read with these eorreetiene therein that the same eenferm t0the record. of the case in the Patent Offic Signed. and sealed this 26thday of May A. D. 19-56.

Leslie Frazer (Seal) Acting Commissioner of Patents,

